Answers

Add 27/21 and 63/75

1^st number: 1 6/21, 2^nd number: 63/75

27/21 + 63/75 is 372/175.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 75 is 525
   
   Next, find the equivalent fraction of both fractional numbers with denominator 525
2. For the 1st fraction, since 21 × 25 = 525,
   27/21 = 27 × 25/21 × 25 = 675/525
3. Likewise, for the 2nd fraction, since 75 × 7 = 525,
   63/75 = 63 × 7/75 × 7 = 441/525
4. Add the two like fractions:
   675/525 + 441/525 = 675 + 441/525 = 1116/525
5. 1116/525 simplified gives 372/175
6. So, 27/21 + 63/75 = 372/175
   In mixed form: 222/175

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